LB 9507 Chapter 2: Design of the Lumat
2-11
2.6 Variable injectors
High-precision pumps inject the reagent into the chamber. The
user can define the injector volume. The integrated software
allows you to select the injectors as required (no injection, injector
1, injector 2, or injector 1 and 2) and to define their volumes in 5
µL steps in the range of 25 µL to 300 µL. If the user enters the
injector volume not within the 5 µL step range, the system rounds
up or off. Values out of the range are adjusted to the limits (25 µL
or 300 µL).
Flexible delay times can also be selected between the injections
and measurement. Injectors developed by Berthold and the
precise arrangement of the injector tips ensure that the reagent is
mixed with the sample immediately upon injection, and that
exactly the right volume of reagent is used.
The injector pumps are located on the right hand side of the
instrument beneath the reagent bottles (Fig. 2-10), and are
covered by a metal plate.
Reagent 1 Reagent 2
Injector pump 1 Injector pump 2
Fig. 2-10: Lumat injectors
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